Platypus GravityWorks 4.0L Water Filter System
High-capacity, pump-free filtration for groups and basecamps. Delivering 4 liters of filtered water in just 2.5 minutes with no pumping, the GravityWorks 4.0L system is the easiest and fastest way to get filtered water in the backcountry. Ideal for bigger groups or basecamps, the system has an 8-liter total capacity, easily providing filtered water for
High-capacity, pump-free filtration for groups and basecamps. Delivering 4 liters of filtered water in just 2.5 minutes with no pumping, the GravityWorks 4.0L system is the easiest and fastest way to get filtered water in the backcountry. Ideal for bigger groups or basecamps, the system has an 8-liter total capacity, easily providing filtered water for drinking, washing up, cooking, and cleaning. No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work. Fast: Filters up to 1.75 liters per minute; filter lifetime up to 1,500 liters of water. Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa*. Ultralight & Compact: System weighs 10.75 oz. (305 g) and stows smaller than most 1L bottles. Group-ready: 8 liter (4.0L filtered + 4.0L dirty) total capacity easily supplies water for groups. Field-cleanable: Microfilter can be easily backflushed in 4 seconds to maintain filter performance. Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media. Easy collecting & dispensing: Collecting water is easy—simply open the top, scoop water, and close; control delivery of filtered water with hose shutoff clamp. Comes with: 4.0L Dirty reservoir, 4.0L Clean reservoir, Hollow Fiber microfilter, hoses, shutoff clamp, and storage sack. *This includes Giardia, Cryptosporidium, E. coli, Salmonella and Cholera.
Product Features
- No pumping: Just fill the dirty reservoir, hang it, and let gravity do the hard work.
- Fast: Filters up to 1.75 liters per minute; filter lifetime up to 1,500 liters of water.
- Effective: Meets all EPA & NSF guidelines for the removal of 99.9999% of bacteria and 99.9% of protozoa*.
- Group-ready: 8 liter (4.0L filtered + 4.0L dirty) total capacity easily supplies water for groups.
- Hollow Fiber Advantage: Hundreds of tiny, hollow fibers, enable the microfilter to filter water faster than traditional filter media.
Small learning curve. A+ prior to using this filter I was using a sawyer mini for weight purposes. I wanted this one for the capacity and boy does it have capacity. It’s not very difficult for the first time use. If you don’t have a place to hang it while filtering you can use a rock but flow won’t be as fast. It still won’t take much time I can fill my hydro bladder and a couple nalgenes with left over water. All in all I would highly recommend.
Worked well, but has poor grommets. Just got back from a week in the Wind River Mountains, The platypus did a great job. When we got to camp one person could fill the dirty water reservoir while the other two started working on setting up the rest of camp. In no time at all we had camp set up and had 4 liters of water for dinner preparations. It was very convenient. During the day if we needed to make a quick stop to refill water bottles, the platypus worked ok but did not seam to have any real advantage over a pump. Over all It worked great, the main reason I rated it as 4 star and not 5, was because the grommets pulled out on the second day. They are only a one sided grommet and are kind of flimsy. We will need to try to replace the grommets before our next trip.